| Post: | Deputy Marshal |
| Body: | the Sejm of the Republic of Poland |
| Native Name: | Wicemarszałek Sejmu Rzeczypospolitej Polskiej |
| Insignia: | Herb Polski.svg |
| Insigniasize: | 100px |
| Seat: | Sejm and Senate Complex of Poland, Warsaw |
| Department: | Presidum of the Sejm |
| Appointer: | The Sejm |
| Inaugural: | Jakub Bojko, Andrzej Maj, Jędrzej Moraczewski, Stanisław Osiecki, Józef Ostachowski, Stanisław Nowicki, Zygmunt Seyda |
| Formation: | 1919 |
Deputy Marshal of the Sejm of the Republic of Poland (Polish: '''Wicemarszałek Sejmu RP''') is a person elected to preside over Sejm (Polish lower chamber of parliament) sessions when the Sejm Marshal is not presiding. Throughout the course of the Third Republic, there have always been several Deputy marshals, usually elected from some or all of the various parliamentary caucuses, rather than from the Government majority (although governing parties always have a majority in the Sejm Presidium, which is composed of the Marshal and Deputy Marshals).
Under Marshal Szymon Hołownia
Under Marshal Elżbieta Witek
Under Marshals Marek Kuchciński and Elżbieta Witek
Under Marshals Ewa Kopacz, Radosław Sikorski and Małgorzata Kidawa-Błońska
Under Marshals Bronisław Komorowski and Grzegorz Schetyna
Under Marshals Marek Jurek and Ludwik Dorn
Under Marshals Marek Borowski, Józef Oleksy and Włodzimierz Cimoszewicz
Under Marshal Maciej Płażyński
Under Marshals Józef Oleksy and Józef Zych
Under Marshal Wiesław Chrzanowski